https://github.com/torvalds/linux
Revision 498e720b96379d8ee9c294950a01534a73defcf3 authored by Daniel J Blueman on 17 June 2011, 18:32:19 UTC, committed by Dave Airlie on 17 June 2011, 22:25:16 UTC
The failure appeared in dmesg as: [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer elapsed... blt ring idle [waiting on 35064155, at 35064155], missed IRQ? This works around that problem on by making the blitter command streamer write interrupt state to the Hardware Status Page when a MI_USER_INTERRUPT command is decoded, which appears to force the seqno out to memory before the interrupt happens. v1->v2: Moved to prior interrupt handler installation and RMW flags as per feedback. v2->v3: Removed RMW of flags (by anholt) Cc: stable@kernel.org Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com> Signed-off-by: Eric Anholt <eric@anholt.net> Tested-by: Chris Wilson <chris@chris-wilson.co.uk> [v1] Tested-by: Eric Anholt <eric@anholt.net> [v1,v3] (incidence of the bug with a testcase went from avg 2/1000 to 0/12651 in the latest test run (plus more for v1)) Tested-by: Kenneth Graunke <kenneth@whitecape.org> [v1] Tested-by: Robert Hooker <robert.hooker@canonical.com> [v1] Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=33394 Signed-off-by: Dave Airlie <airlied@redhat.com>
1 parent 95d17b7
Tip revision: 498e720b96379d8ee9c294950a01534a73defcf3 authored by Daniel J Blueman on 17 June 2011, 18:32:19 UTC
drm/i915: Fix gen6 (SNB) missed BLT ring interrupts.
drm/i915: Fix gen6 (SNB) missed BLT ring interrupts.
Tip revision: 498e720
| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 4.1 KB |
| Makefile | -rw-r--r-- | 426 bytes |
| dir.c | -rw-r--r-- | 32.4 KB |
| file.c | -rw-r--r-- | 6.6 KB |
| getopt.c | -rw-r--r-- | 1.9 KB |
| getopt.h | -rw-r--r-- | 367 bytes |
| inode.c | -rw-r--r-- | 27.0 KB |
| ioctl.c | -rw-r--r-- | 22.4 KB |
| mmap.c | -rw-r--r-- | 2.9 KB |
| ncp_fs.h | -rw-r--r-- | 2.9 KB |
| ncp_fs_i.h | -rw-r--r-- | 540 bytes |
| ncp_fs_sb.h | -rw-r--r-- | 5.1 KB |
| ncplib_kernel.c | -rw-r--r-- | 32.5 KB |
| ncplib_kernel.h | -rw-r--r-- | 7.7 KB |
| ncpsign_kernel.c | -rw-r--r-- | 3.6 KB |
| ncpsign_kernel.h | -rw-r--r-- | 700 bytes |
| sock.c | -rw-r--r-- | 22.7 KB |
| symlink.c | -rw-r--r-- | 4.2 KB |
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